Mari Supply Digi-Lite 600W HPS/Mh Grow Light Soft Start/Digital Dimmable Electronic Ballast for Grow Light Bulb European/UK Hot Sales - China Digital Ballast 600W and 600W HPS/Mh Grow Light Ballast
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Hydro Crunch 600-Watt HPS Grow Light System with 6 in. Large Air Cooled Hood Reflector With Glass - Walmart.com
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Hortilux Ceramic HPS Lamp and Ballast Kit, 600W, 120/240V